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Best generator install pros near Decatur, IL

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Top-Rated Generator install pros in Decatur - Updated Nov 2026

Avatar for Horizon Electric USA, Inc.
Horizon Electric USA, Inc.
4.7(
17
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Decatur, IL and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"Luis was absolutely phenomenal. He installed for us a 240volt connection in our garage for our electric car. He gave us the best price, was on time, very professional, and took the time to explain everything to us before and during the process of installation. Incredible, meticulous work. Thank you Luis."
CUMMINS 50KW LVP GENERATOR
225 AMP NEMA 3R TRANSFER SWITCH
PCV piping
Meter Panel Assembling
Ready for concrete

+8

Response time1 day
Recommended by100%of homeowners
Avatar for Copper Creek Electric Inc
Copper Creek Electric Inc
4.9(
7
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Decatur, IL and surrounding areas

In business since 2010

Free estimates

Credit card accepted

"I was so impressed at the excellence and professionalism of this company in doing the projects I needed for my remodel. Iâ m learning that surprises are to be expected when doing so, and for a homeowner, what would be daunting for me, was dealt with easily and knowledgeably for Ryan and Kyle. Ryan came back to address an issue stemming from the quality of the fixtures I chose, and helped me to find an adequate solution, with patience and a great attitude, which spoke volumes to me. I am grateful to find professionals that do quality work, and possess integrity, and I would highly recommend Ryan and his crew."
Response time4 days
Recommended by100%of homeowners
Raines Electric, LLC
5.0(
1
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+2 more

Serving Decatur, IL and surrounding areas

In business since 2018

Free estimates

Emergency services offered

We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job. \n \n \n \n \nWe are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We have many years of experience to give you confidence that we are your number one choice for your next home project. You will find us to be competitively priced with close attention to the details. We look forward to building a lasting relationship and guarantee your satisfaction! \n \n

Recommended by100%of homeowners
Ironhorse Electric
New to Angi
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Decatur, IL and surrounding areas

In business since 2014

Free estimates

Credit card accepted

Ironhorse Electric is locally owned and operated in the Charleston area. We are a full service electrical company that services both commercial and residential customers. We have over 20 years experience in the home improvement trade and we provide quality work and we are always on time. Please call us today.

Dam Handyman Services
New to Angi
Portable Generator - Install

Serving Decatur, IL and surrounding areas

In business since 2024

Free estimates

Warranties offered

Dam Handyman Services is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Generator Install FAQs, answered by experts

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

These advanced generators use a key fob or a smartphone app to remotely start, which is ideal for getting power back on immediately without venturing outside. This feature is more common on whole home generators, but you may be able to find it on large portable generators, too.

The Decatur, IL homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.